(Πειρίθοος), a son of Ixion or Zeus by Dia, of Larissa in Thessaly (Hom. Il. 2.741, 14.17; Apollod. 1.8 § 2; Eustath. ad hom. p. 101 i. He was one of the Lapithae, and married to Hippodameia, by whom he became the father of Polypoetes (Hom. Il. 2.740, &100.12.129). When Peirithous was celebrating his marriage with Hippodameia, the intoxicated centaur Eurytion or Eurytus carried her off, and this act occasioned the celebrated light between the centaurs and Lapithae (Hom. Od. xi, 630, 21.296, Il. 1.263, &c.; Ov. Met. 12.224). He was worshipped at Athens, along with Theseus, as a hero. (Paus. 1.30.4; comp. Apollod. 1.8.2; Paus. 10.29.2; Ov. Met. 8.566; Plin. >H. N. 36.4, and the articles HERACLES and CENTAURI.)